1.Comparative Study on HPLC Characteristic Spectrum of Erycibe obtusifolia from Different Habitats by HPLC
Jing WEN ; Hongzhang SUN ; Jinghua LU
China Pharmacy 2015;(24):3417-3419
OBJECTIVE:To establish and compare the HPLC characteristic Spectrum Erycibe obtusifolia from different habi-tats. METHODS:HPLC was performed on the column of Hypersil ODS C18 with the mobile phase of acetonitrile-0.1% phosphoric acid at flow rate of 1.0 ml/min,detection wavelength was 347 nm,the column temperature was 30℃and the sample size was 20μl. 12 different batches of samples were determined and the characteristic spectrums of those were established. TCM fingerprint evalu-ation software(2004 edition)was used to evaluate the similarity of 12 batches of samples. RESULTS:10 characteristic peaks were identified in the characteristic spectrum of E. obtusifolia. Peak 3 was scopolamine glycosides,peak 4 was chlorogenic acid and peak 6 was scopoletin. The similarities of 10 batches of samples were proved to be higher than 0.90 and 2 batches were proved to be less than 0.90. CONCLUSIONS:The method is simple,accurate and reproducible,and can provide scientific evidence for effectively controlling the internal quality standards.
2.NEViewer-based visual analysis of medical scientific research topics evolution
Jing SUN ; Qikai CHENG ; Wen ZHANG
Chinese Journal of Medical Library and Information Science 2014;(10):56-60
A co-words network for high frequency words was established using the title information of papers pub-lished in 22 medical journals from 2005 to 2013.The evolution of medical scientific research topics was analyzed with the visual analysis software NEViewer, which showed that medical research in China was focused on basic and application studies with the prevention and treatment of frequently encountered diseases and the associated technical methods as the two main directions, and that medical scientific research topics would remain their stable status in a rather long period.The hot medical topics were explained.
3.Antibody Production Technology
China Biotechnology 2006;0(10):-
Ever from FDA approved the Rituxan in 1997,an Anti-CD-20 chimeric antibody,there have been more than 20 antibodies approved and they have got into more than 56 countries.About half approvied antibodies are curing kinds of cancers and seven of them have got a excellent sale targets to be "Blockbuster Drug".As the cell culture technology improving,the large scale cell expression titer comes from 1g/L to 5g/L.At the same time,the culture scale is coming form 12,000L to 15,000L,even 20000L and it can run several bioreactors at the same time.All these are make the improvement of the antibody purification.The new edition of media,system,chromatography technology and filtration technology can product the protein to several tens kilogram antibody per cycle and tons per year,although the productivity is only several kilograms per cycle many years ago.Also the new combined technology makes a two-step chromatography production protocol come into been.This will highly improve the antibody productivity and save the investment cost.
4.Preliminary experience with real-time shear wave elastography monitoring of thermal ablation of liver cancer
Jing DONG ; Wen CHENG ; Qiucheng WANG ; Lei ZHANG ; Yixin SUN
China Oncology 2016;26(2):145-150
Background and purpose:Thermal ablation (radiofrequency ablation, RFA/microwave ablation, MWA) is the most commonly used minimally invasive technique for the treatment of liver cancer. Real-time shear wave elastography (SWE) is a new type of ultrasonic imaging technology, which was used in our study to monitor thermal ablation of liver cancer. This study aimed to investigate the stiffness change of liver cancer and that of surrounding liver parenchyma before and after thermal ablation, and to evaluate the application of SWE for monitoring thermal ablation for liver cancer.Methods:From Oct. 2014 to Apr. 2015, a total number of 36 patients, with 39 lesions, were treated with RFA or MWA and got complete response. SWE examination was performed before and after ablation. The SWE-mean, SWE-min, SWE-max, SWE-SD of lesions and the surrounding liver parenchyma were measured. Statistical analysis was made to compare the stiffness changes of liver cancer with those of the surrounding liver parenchyma before and after thermal ablation, and to determine whether there were differences between two different ablation modes.Results:Before and after ablation, the SWE-mean of lesions was (30.09±11.67) kPavs (52.11±17.56) kPa,SWE-min was (10.46±8.22) kPavs (20.57±11.42) kPa, SWE-max was (51.50±20.84) kPavs (88.54±27.75) kPa, SWE-SD was (10.63±4.30) kPavs (16.89±7.72) kPa; There were statistically signiifcant differences (P<0.05). Before and after ablation, the SWE-mean of surrounding liver parenchyma was (8.84±2.82) kPavs (8.91±2.78) kPa, SWE-min was (4.77±1.95) kPavs (4.69±1.90) kPa, SWE-max was (13.82±3.79) kPavs (14.34±3.97) kPa, SWE-SD was (3.24±1.32) kPavs (3.37±1.29) kPa; There were no statistically signiifcant differences (P>0.05). After ablation, the SWE-mean of RFA and MWA was (45.55±10.91) kPavs (60.59±20.99) kPa, SWE-min was (18.95±8.86) kPavs (25.93±10.93) kPa, SWE-max was (76.58±15.51) kPavs (104.01±32.59) kPa, SWE-SD was (13.82±3.52) kPavs (20.85±9.77) kPa; There were statistically signiifcant differences (P<0.05).Conclusion:SWE can quantitively analyze the stiffness of lesions. The ablation zone became stiffer after RFA or MWA, and the ablation zone of MWA was stiffer than that of RFA. Two kinds of ablation methods did not signiifcantly affect the stiffness of liver parenchyma around the lesion. SWE could potentially be used to monitor thermal ablation of liver cancer.
5.Study on the Quality Standard of Liyan Mixture
Xia JING ; Jin XU ; Fang SUN ; Wen ZHAN
China Pharmacy 2015;26(36):5141-5143
OBJECTIVE:To establish the quality standard of Liyan mixture. METHODS:TLC was conducted to identify the Scrophularia ningpoensis,Terminalia chebula and Glycyrrhiza uralensis;HPLC was conducted to determine the content of chloro-genic acid. The column was Agilent Eclipse Plus C18 with mobile phase of methanol-0.2% phosphoric acid (18:82,V/V) at flow rate of 1.0 ml/min,the detection wavelength was 327 nm,column temperature was 30 ℃ and the injection volume was 20 μl. RE-SULTS:TLC showed S. ningpoensis,T. chebula and G. uralensis had clear spots and good separation. There was no interference for negative control. The linear range of chlorogenic acid was 0.16-1.6 μg(r=0.999 9);RSDs of precision,stability and reproduc-ibility tests were lower than 1.0%,recovery was 96.9%-101.4%(RSD=1.17%,n=9). CONCLUSIONS:The method is simple and reproducible,and can be used for the quality control of Liyan mixture.
6.The influence and screening value of percentage of body fat and waist height ratio for hyperlipidemia in physical examination people
Yongchun CHEN ; Xingguo CAO ; Jing WEN ; Xueting LI ; Lin SUN
Tianjin Medical Journal 2015;(8):916-919
Objective To evaluate the relationship and screening value of percentage of body fat (BF%) and waist height ratio (WHtR) for hyperlipidemia in physical examination people. Methods A total of 2 668 objects taking physical examination in Henan Province People′s Hospital from September to December 2014 were included in this study. Values of height, body mass index (BMI), waist circumference, body composition and blood lipid level were detected. The receiver oper?ating characteristic curve (ROC) was used to analyze the screening rate of WHtR and BF%on hyperlipidemia with sensitivi?ty, specific and area under the curve (AUC). After stratified by age, waist circumference and BMI, multivariable logistic re?gression analysis was used to investigate the association between hyperlipidemia risk, BF% and WHtR. Results The screening accuracy rate on hyperlipidemia was higher for BF%, AUC was 0.79 in both female and male people. Among wom?en with BMI<18.5 kg/m2 and 18.5~<24 kg/m2, the risk of hyperlipidemia was higher in superfatted group than that of normal group. There was no correlation between WHtR and hyperlipidemia. Among men older than 40 y or with abnormal waist cir?cumference (≥85 cm), the risk of hyperlipidemia was higher in superfatted group than that of normal group, but not associat?ed with WHtR. Conclusion The BF%is a better screening indicator for hyperlipidemia compared with that of WHtR and BMI. Women with BMI<18.5 kg/m2 and 18.5~<24 kg/m2 and men older than 40 y or with waist circumference over 85 cm are suggested to do body composition tests to improve screening accuracy for hyperlipidemia.
7.Treating diabetes mellitus from liver
Shanshan JING ; Zhimin AI ; Wen SUN ; Tonghua LIU ; Xiangyu GUO
International Journal of Traditional Chinese Medicine 2012;(12):1095-1097
Depending on the meaning and function of the liver in traditional Chinese medicine and modern medicine,this paper explores the important role of liver in the pathogenesis of DM (Diabetes Mellitus,DM).Combined with treatment based on syndrome differentiation and specific case report study,this paper has stressed the importance of treating DM from liver and so to set a sound basis for the systemic treatment based on syndrome differentiation from internal organs for DM.
8.Analysis of the Difference in Knowledge Attitude and Behaviour of Hypertension Patients pre and after Intervened
Jufeng YAO ; Yajing ZHANG ; Jing SUN ; Jimin ZHANG ; Wen FENG
Chinese Journal of Practical Nursing 2001;17(2):1-3
To search the effective health education to the hypertension patients and to decrease complication such as cerebrovascular ailment,106 hypertension patients were divided into two groups randomly:the interference (52) and the control (54).The interference group is treated with health education and health promotion constantly (Base line:1996,end line 1999).The results of 2 times investigations at the base line and end line respectively to the groups show that:the KAB in both groups were improved,and the interference improved notably,especially in behavior.The percentage of the patients who care about danger factors and hygeine knowledge rise from 68% (base line) to 78.6% and the percentage of the patients who did exercise constantly rise from 58.9% to 71.4%.It is also showed that,in periodic measurement of blood pressure and regular administration of medicine,the interference group behaved better than the contrast (P<0.01).We can conclude that giving face to face health education and health promotion to hypertension patients is a effective way to prevent and control hypertension complications
9.Clinical Features and Etiology Analysis of Ischemic Cerebrovascular Disease in Children
kun, XIA ; dan, SUN ; wen-jing, TU ; zhi-sheng, LIU
Journal of Applied Clinical Pediatrics 2006;0(24):-
Objective To summarize the clinical characteristics and causes of ischemic cerebrovascular disease(ICD)in children.Methods A retrospective analysis was conducted on the clinical data of 53 cases with ICD from Feb.2002 to Jun.2008 at the department of neurology in Wuhan Children's Hospital.The self-designed questionnaire of children with ICD was used,whose items included patients' age,gender,personal history,clinical features,cerebrospinal fluid examination,neurological imaging,immunologic examination,metabolic examination,and so on.Results Of 53 children with ICD,30 cases(56.6%)were male,and 23 cases(43.4%)were female.Patients' age varied from 9 months to 12 years old,in which 45 cases(84.9%)were less than 6 years old.Patients from rural area(60.4%)were more than those from city(39.6%).Ratio of limb paralysis was 75.5%(40 cases)in first clinical symptomatology of children with ICD,including hemiplegia in 32 cases(60.4%),alternate hemiplegia in 5 cases(9.4%)and monoplegia in 3 cases(5.7%).Skull CT/MRI scan was performed to reveal 27 cases(50.9%)with basal ganglia region infarction and secondly 15 cases(28.3%)with multi-lobar infarction.Forty cases were found in abnormal cerebrovascular image by means of magnetic resonance angiography/digital subtraction angiography,in which middle cerebral artery and its branches were involved in 21 cases(52.5%).There were 41 cases(77.4%)of patients to be found with clear causes,of which 13 cases(24.5%)were of infections,8 cases(15.1%)of moyamoya disease,5 cases(9.4%)of cerebral vascular malformations,4 cases(7.5%)of head trauma.However,another 12 cases(22.6%)of patients had unknown etiology.Conclusions Children with ICD had characteristics themselves.The limb paralysis was mostly the first symptoms,and the middle cerebral artery and its branches lesions were the most common locations in children with ICD,and next the internal carotid artery involvement,anterior cerebral artery involvement,posterior cerebral artery involvement,cerebral vascular malformations,and so on.Their major cause was infection,followed by Moyamoya disease,cerebrovascular malformations and head trauma,and there were still some unknown causes.
10.Analysis of the Difference in Knowledge Attitude and Behaviour of Hypertension Patients pre and after Intervened
Jufeng YAO ; Yajing ZHANG ; Jing SUN ; Jimin ZHANG ; Wen FENG
Chinese Journal of Practical Nursing 2001;0(02):-
To search the effective health education to the hypertension patients and to decrease complication such as cerebrovascular ailment,106 hypertension patients were divided into two groups randomly:the interference (52) and the control (54).The interference group is treated with health education and health promotion constantly (Base line:1996,end line 1999).The results of 2 times investigations at the base line and end line respectively to the groups show that:the KAB in both groups were improved,and the interference improved notably,especially in behavior.The percentage of the patients who care about danger factors and hygeine knowledge rise from 68% (base line) to 78.6% and the percentage of the patients who did exercise constantly rise from 58.9% to 71.4%.It is also showed that,in periodic measurement of blood pressure and regular administration of medicine,the interference group behaved better than the contrast (P